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MASSACHUSETTS 

AGRICULTURAL 

COLLEGE 

no  34330  DATE^  -XrAX 

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lo"5><  s 

1  677 
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V.  \ 


V.I 


IHC 
MOGUL    GASOLINE    TRACTOR 

SINGLE  CYLINDER,  20  AND  25 -HORSE  POWER 


;  i>  . 


An  IHC  20-horse   power    gasoline  tractor  pulling  a  P.  &  O.  ;">•  bottom  Mogul  engine   gang  plow  on  the  Ames   Barlow   laim,   Galesburg,  111. 

March  17,   li)10.      This  tractor  was  working  under  favorable  soil  conditions 


International    Harvester   Company    of    America 

{  Incorporated) 

Chicago  LT  S  A 


Adv.  267  A 


MOGUL  GASOLINE  TRACTORS 

20  and  25-Horse  Power 


Mogul  20  and  25-horse  power  tractors  are  characterized  by  a  continuous  stationary  axle  through  both  drive  wheels,  a  gear 
drive  forward  and  a  friction  reverse,  and  70-inch  drive  wheels  with  20  or  22-inch  tires. 

Engine 

The  engine  on  the  20-horse  power  tractor  is  the  regular  Famous  single  cylinder  four-cycle  engine.  On  the  25-horse  power 
tractor,  it  is  the  25-horse  power  Famous  engine,  which  differs  from  the  20-horse  power  only  in  the  valve  arrangement.  On  the 
25-horse  power,  the  valves  are  mounted  in  separate  cages  so  it  is  possible  to  remove  them  for  cleaning  or  grinding  without 
removing  the  cylinder  head  or  breaking  the  cylinder  head  gasket. 

Thousands  of  I  H  C  Famous  engines  are  in  use  in  every  section  of  the  country,  and  their  excellence  cannot  be  questioned. 
Every  I  H  C  engine  is  guaranteed  to  deliver  more  than  its  rated  horse  power.  For  this  reason  every  I  H  C  Mogul  tractor  is 
guaranteed  to  deliver  its  rated  brake  horse  power.  With  this  guarantee  of  engine  brake  power,  and  a  truck  construction  which 
insures  the  transmission  of  power  to  the  drawbar  with  minimum  friction,  a  purchaser  is  absolutely  certain  of  securing  at  the 
drawbar  of  any  Mogul  tractor  as  much  or  more  power  as  any  other  tractor  of  same  horse  power  would  deliver  under  the 
same  conditions. 


Description  of  Engine 


Cylinders — Cylinder  and  jacket 
walls  are  cast  integral.  Ample 
space  is  given  to  allow  a  free  circu- 
lation of  the  cooling  water. 

Cylinder  Head  —  Bolted  to  the 
cylinder.  The  water  jackets  of  the 
head  and  the  cylinder  register. 

Valves — Poppet  type.  Ground 
in  their  seats  and  held  by  springs. 
Seats  removable.  Valve  guides 
extra  long.  Valves  mechanically 
operated.  The  inlet  valve  check 
keeps  the  intake  valve  automati- 
cally closed  when  the  exhaust 
valve  is  held  open  in  cases  when 
the  speed  is  above  normal. 


Mounting  of  the  Mogul  single  cylinder  tractor.     Note  the  powerful  main  frame,  large  wheels  and  gears 

2 


I  H  C  Mogul  20-horse  power  gasoline  tracto 


Governor — Hit-and-miss  governor,  fly-wheel  type. 

Starting — An  extra  roller  relieves  the  compression  when  starting  the  engine.     This  makes  starting  easy. 
Piston — Trunk  type,  extra  long.     Turned  and  carefully  ground  to  size.      Provided  with  lap  joint  piston  rings. 
Connecting  Rod  —  Drop  forged,  carefully  turned  to  size.     Provided  with  a  divided  box  on  the  crank  end  and  an  adjustable 
split  bronze  bushing  for  the  wrist  pin  bearing. 

Crank  Shaft  —  Drop  forged,  of  liberal  proportions  and  turned  to  exact  size. 

Main  Bearings  —  Phosphor  bronze,  machine  finished  to  gauge,  of  liberal  length  and  thickness,  and  extra  heavy. 
Fly-wheels — Provided  with  split  hubs,  keyed  to  the  crank  shaft,  and  clamped  by  means  of  bolts  running  through   the  hubs. 
Gasoline  Pump  —  Plunger  type  with  ball  valves.     No  escape  of  gasoline  past  the  plunger. 

Mixer — Nozzle  inside  of  air  pipe  controlled  by  a  needle  valve.     Fuel  is  atomized  before  it  enters  the  cylinder.     Provided 
with  overflow  pipe. 

Ignition — Make-and-break  ignitor,  may  be  easily  removed  for  cleaning.     Electric  current  from  batteries  and  auto  sparker. 
Cooling   Arrangement  —  Includes  a  screened  cooling  tower,  plunger  type  circulating  pump,  and  piping. 


Mounting 

The  mounting  is  very  substantial   and  rigid.     The  frame  consists  of  channel  steel  sills  which  are  continuous  from  the  front 
to  the  rear.       These  sills  are  reinforced  by  additional  sills  at  the  rear  which  carry  the  axle  castings.      The  engine  is  mounted 

on  a  special  sub-base  bolted  to  the  channel  steel  sills.  The  front 
axle  is  made  of  special  steel,  4x4  inches,  and  is  continuous  through 
both  drive  wheels.  The  weight  on  the  frame  is  so  distributed  that  the 
maximum  tractive  power  is  produced. 

Gears 

Power  is  transmitted  through  only  two  sets  of  pinions  and 
gears  from  the  crank  shaft  to  the  drive  wheels.  The  movable 
pinion  on  the  crank  shaft  drives  the  differential  gear  on  the  counter- 
shaft, and  the  two  pinions  on  the  ends  of  the  countershaft  drive  the 
large  gears  on  the  drive  wheels.  In  this  way,  power  is  equally 
distributed  to  both  drive  wheels.  Pinions  are  made  of  steel,  while 
the  large  gears  are  cast  in  order  to  insure  maximum  wearing  qualities. 
The  countershaft  is  tied  to  the  continuous  axle  by  exceptionally 
4 


Rear  view  of  the  Mogul  single  cylinder  tractor  mounting 


I  H  C  Mogul  25-horse  power  gasoline  tractor 


heavy  castings  which  provide  three  wide  bearings  for  the  shaft.  Particular  attention  is  called  to  this  construction  because 
it  insures  such  rigidity  that  the  gears  can  never  get  out  of  alignment  and  cut.  Each  bearing  is  provided  with  a  hard  oiler 
which  is  easily  accessible.     All  gears   are  well  encased  to  prevent  accident. 


Oiling 

Mogul  20  and  25-horse  power  tractors  are  provided  with 
mechanical  oilers  which  oil  the  cylinder,  the  crank  pin,  the  counter- 
shaft, and  main  journals.  This  insures  ample  lubrication  at  essen- 
tial points. 

Friction  Reverse 

The  friction  reverse  makes  it  possible  to  throw  in  the  reverse 
while  the  machine  is  moving,  without  danger  of  stripping  gears. 
This  construction  also  eliminates  an  intermediate  gear. 


Clutch 

Only  one  friction  clutch  is  used  to  transmit  power  from  the 
crank  shaft  to  the  gears.  This  clutch  has  three  shoes  with  large 
friction  blocks  which  engage  the  metal  surface  of  the  pulley.  This 
insures  a  positive  grip  which  permits  the  gears  to  be  started  slowly 
or  rapidly.  No  matter  how  suddenly  the  clutch  is  thrown  in  there 
is  no  danger  of  breakage,  because  the  large  coiled  springs,  one  of 
which  is  placed  behind  each  clutch  shoe,  take  up  the  sudden  jerks. 


Drive  Wheels 

The  drive  wheels  are  70  inches  in  diameter  with  a  20  or  22-inch 
face.  The  hubs  have  20-inch  bearings  and  the  spokes  are  set  in 
the  hub  so  that  they  are  easy  to  adjust.  The  lugs  are  attached  with 
spring  lock  washers  and  nuts  and  are  easily  removed.  At  an  addi- 
tional cost,  8-inch  tire  extensions  can  be  furnished. 


Detail  view  showing  gears  of  the  Mogul  single  cylinder  tractor.    Note 
the  convenient  location  of  the  filling  pipe  with  funnel  top, 
also  the  location  of  the  auto  sparker 


Cooling  Arrangement 


The  engine  is  water  cooled.  The  water  is  forced  through  the  jacket  and  over  a  screen  cooling  tower  by  means  of  a  plunger 
type  circulating  pump.     The  galvanized  screen  may  be  easily  removed  from  the  tower  when  necessary,  and  renewed. 

One  of  the  most  desirable  features  of  this  cooling  system  is  the  fact  that  only  a  small  amount  of  water  is  required.  This 
cooling  system  is  well  adapted  for  use  in  cold  climates  because  the  engine  and  tank  may  be  drained  at  night  to  prevent  freezing. 

Operating  Levers 

There  are  two  operating  levers  placed  convenient  to  the 
driver,  one  for  forward  and  one  for  reverse.  The  steering  rod  is 
provided  with  a  clutch  so  that  the  rod  may  be  dropped  out  of  the 
way  when  it  is  necessary  to  reach  the  side  of  the  engine.  The 
brake  on  the  differential  gear  on  the  countershaft  is  operated  by 
a  foot  lever. 

Convenience  and  Accessibility 

One  of  the  very  desirable  features  of  this  tractor  is  its  conven- 
ience. The  platform  is  roomy  and  strongly  reinforced  by  steel 
strips.  The  tool  box  is  large.  The  filling  pipe  is  located  at  the 
side  of  the  engine  and  forward.  It  is  only  waist  high  and  so  acces- 
sible that  filling  the  fuel  tank  may  be  very  easily  done.  This  pipe 
has  a  special  funnel  top  with  a  patented  spring  cover.  The  auto 
sparker  is  conveniently  located  out  of  the  way  of  all  gears.  There 
is  ample  room  on  either  side  of  the  engine  for  the  operator  to  stand 
if  necessary. 

Equipment 

Swinging  draw  bar,  spring  hitch,  mud  lugs,  auto  sparker,  and 
speed-changing  device  are  part  of  the  regular  equipment. 


Rear 
platform 
operator 
steering 


view    of    Mogul    single    cylinder   tractor,    showing   the    roomy 
and    the    space    on     each     side    of    the    engine     to    permit    the 
to  reach  all  parts.     Note  the  convenient  location  of  the  levers, 
wheel,  and  foot  brake 


Specifications 

Complete  specifications  of  this  outfit  will  be  found  on  page  8. 


Specifications    of   Mogul   Single   Cylinder   Tractors 


Rated  horse  power 
Number  of  cylinders 
R.  P.  M.  of  engine 
R.  P.  M.  of  pulley 
Diameter  of  pulley 
Face  of  pulley 
Diameter  of  drive  wheels 
Face  of  drive  wheels 
Total  width  of  tractor 
Capacity  of  fuel  tank 
Capacity  of  water  tank 
Net  weight  .""" 


20-HORSE  POWER 

25-HORSE  POWER 

20 
1 

25 

i 

240  to  290 

240  to  290 

240  to  290 

240  to  290 

36 

36 

lO1^ 

10^ 

70 

70 

20 

22 

8' 5" 

9'  5" 

36 

36 

54 

75 

13,500 

1  7,900 

